USN-1595-1: libxslt vulnerabilities

Releases

• Ubuntu 12.04
• Ubuntu 11.10
• Ubuntu 11.04
• Ubuntu 10.04
• Ubuntu 8.04

Packages

• libxslt - XSLT processing library

Details

Chris Evans discovered that libxslt incorrectly handled generate-id XPath
functions. If a user or automated system were tricked into processing a
specially crafted XSLT document, a remote attacker could obtain potentially
sensitive information. This issue only affected Ubuntu 8.04 LTS, Ubuntu
10.04 LTS and Ubuntu 11.04. (CVE-2011-1202)

It was discovered that libxslt incorrectly parsed certain patterns. If a
user or automated system were tricked into processing a specially crafted
XSLT document, a remote attacker could cause libxslt to crash, causing a
denial of service. (CVE-2011-3970)

Nicholas Gregoire discovered that libxslt incorrectly handled unexpected
DTD nodes. If a user or automated system were tricked into processing a
specially crafted XSLT document, a remote attacker could cause libxslt to
crash, causing a denial of service. (CVE-2012-2825)

Nicholas Gregoire discovered that libxslt incorrectly managed memory. If a
user or automated system were tricked into processing a specially crafted
XSLT document, a remote attacker could cause libxslt to crash, causing a
denial of service. (CVE-2012-2870)

Nicholas Gregoire discovered that libxslt incorrectly handled certain
transforms. If a user or automated system were tricked into processing a
specially crafted XSLT document, a remote attacker could cause libxslt to
crash, causing a denial of service, or possibly execute arbitrary code.
(CVE-2012-2871)

Cris Neckar discovered that libxslt incorrectly managed memory. If a user
or automated system were tricked into processing a specially crafted XSLT
document, a remote attacker could cause libxslt to crash, causing a denial
of service, or possibly execute arbitrary code. (CVE-2012-2893)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 8.04

• libxslt1.1 - 1.1.22-1ubuntu1.3

Ubuntu 12.04

• libxslt1.1 - 1.1.26-8ubuntu1.2

Ubuntu 11.10

• libxslt1.1 - 1.1.26-7ubuntu0.1

Ubuntu 11.04

• libxslt1.1 - 1.1.26-6ubuntu0.1

Ubuntu 10.04

• libxslt1.1 - 1.1.26-1ubuntu1.1

In general, a standard system update will make all the necessary changes.

References

• CVE-2011-1202
• CVE-2011-3970
• CVE-2012-2825
• CVE-2012-2870
• CVE-2012-2871
• CVE-2012-2893

Related notices

• USN-1121-1
• USN-1123-1
• USN-1112-1
• USN-1122-1
• USN-1122-2